Commit 7985f163 authored by Richard Henderson's avatar Richard Henderson

Merge are.twiddle.net:/home/rth/BK/linus-2.5

into are.twiddle.net:/home/rth/BK/axp-2.5
parents 56c32f41 74126cb0
......@@ -144,7 +144,6 @@ EXPORT_SYMBOL(pci_dac_dma_to_offset);
EXPORT_SYMBOL(dump_thread);
EXPORT_SYMBOL(dump_fpu);
EXPORT_SYMBOL(hwrpb);
EXPORT_SYMBOL(wrusp);
EXPORT_SYMBOL(start_thread);
EXPORT_SYMBOL(alpha_read_fp_reg);
EXPORT_SYMBOL(alpha_read_fp_reg_s);
......
......@@ -20,11 +20,22 @@ void foo(void)
DEFINE(TI_FLAGS, offsetof(struct thread_info, flags));
DEFINE(TI_CPU, offsetof(struct thread_info, cpu));
BLANK();
DEFINE(TASK_BLOCKED, offsetof(struct task_struct, blocked));
DEFINE(TASK_UID, offsetof(struct task_struct, uid));
DEFINE(TASK_EUID, offsetof(struct task_struct, euid));
DEFINE(TASK_GID, offsetof(struct task_struct, gid));
DEFINE(TASK_EGID, offsetof(struct task_struct, egid));
DEFINE(TASK_REAL_PARENT, offsetof(struct task_struct, real_parent));
DEFINE(TASK_TGID, offsetof(struct task_struct, tgid));
BLANK();
DEFINE(PT_PTRACED, PT_PTRACED);
DEFINE(CLONE_VM, CLONE_VM);
DEFINE(CLONE_UNTRACED, CLONE_UNTRACED);
DEFINE(SIGCHLD, SIGCHLD);
BLANK();
DEFINE(HAE_CACHE, offsetof(struct alpha_machine_vector, hae_cache));
DEFINE(HAE_REG, offsetof(struct alpha_machine_vector, hae_register));
}
This diff is collapsed.
......@@ -37,14 +37,13 @@ void (*perf_irq)(unsigned long, struct pt_regs *) = dummy_perf;
*/
asmlinkage void
do_entInt(unsigned long type, unsigned long vector, unsigned long la_ptr,
unsigned long a3, unsigned long a4, unsigned long a5,
struct pt_regs regs)
do_entInt(unsigned long type, unsigned long vector,
unsigned long la_ptr, struct pt_regs *regs)
{
switch (type) {
case 0:
#ifdef CONFIG_SMP
handle_ipi(&regs);
handle_ipi(regs);
return;
#else
irq_err_count++;
......@@ -56,32 +55,32 @@ do_entInt(unsigned long type, unsigned long vector, unsigned long la_ptr,
#ifdef CONFIG_SMP
{
long cpu;
smp_percpu_timer_interrupt(&regs);
smp_percpu_timer_interrupt(regs);
cpu = smp_processor_id();
if (cpu != boot_cpuid) {
kstat_cpu(cpu).irqs[RTC_IRQ]++;
} else {
handle_irq(RTC_IRQ, &regs);
handle_irq(RTC_IRQ, regs);
}
}
#else
handle_irq(RTC_IRQ, &regs);
handle_irq(RTC_IRQ, regs);
#endif
return;
case 2:
alpha_mv.machine_check(vector, la_ptr, &regs);
alpha_mv.machine_check(vector, la_ptr, regs);
return;
case 3:
alpha_mv.device_interrupt(vector, &regs);
alpha_mv.device_interrupt(vector, regs);
return;
case 4:
perf_irq(vector, &regs);
perf_irq(vector, regs);
return;
default:
printk(KERN_CRIT "Hardware intr %ld %lx? Huh?\n",
type, vector);
}
printk("PC = %016lx PS=%04lx\n", regs.pc, regs.ps);
printk(KERN_CRIT "PC = %016lx PS=%04lx\n", regs->pc, regs->ps);
}
void __init
......@@ -96,10 +95,8 @@ common_init_isa_dma(void)
void __init
init_IRQ(void)
{
/* Uh, this really MUST come first, just in case
* the platform init_irq() causes interrupts/mchecks
* (as is the case with RAWHIDE, at least).
*/
/* Just in case the platform init_irq() causes interrupts/mchecks
(as is the case with RAWHIDE, at least). */
wrent(entInt, 0);
alpha_mv.init_irq();
......
......@@ -45,7 +45,6 @@
extern int do_pipe(int *);
extern asmlinkage unsigned long sys_brk(unsigned long);
extern int sys_getpriority(int, int);
extern asmlinkage unsigned long sys_create_module(char *, unsigned long);
/*
......@@ -172,68 +171,9 @@ osf_getdirentries(unsigned int fd, struct osf_dirent *dirent,
#undef ROUND_UP
#undef NAME_OFFSET
/*
* Alpha syscall convention has no problem returning negative
* values:
*/
asmlinkage int
osf_getpriority(int which, int who,
int a2, int a3, int a4, int a5, struct pt_regs regs)
{
extern int sys_getpriority(int, int);
int prio;
/*
* We don't need to acquire the kernel lock here, because
* all of these operations are local. sys_getpriority
* will get the lock as required..
*/
prio = sys_getpriority(which, who);
if (prio >= 0) {
regs.r0 = 0; /* special return: no errors */
prio = 20 - prio;
}
return prio;
}
/*
* No need to acquire the kernel lock, we're local..
*/
asmlinkage unsigned long
sys_getxuid(int a0, int a1, int a2, int a3, int a4, int a5, struct pt_regs regs)
{
struct task_struct * tsk = current;
(&regs)->r20 = tsk->euid;
return tsk->uid;
}
asmlinkage unsigned long
sys_getxgid(int a0, int a1, int a2, int a3, int a4, int a5, struct pt_regs regs)
{
struct task_struct * tsk = current;
(&regs)->r20 = tsk->egid;
return tsk->gid;
}
asmlinkage unsigned long
sys_getxpid(int a0, int a1, int a2, int a3, int a4, int a5, struct pt_regs regs)
{
struct task_struct *tsk = current;
/*
* This isn't strictly "local" any more and we should actually
* acquire the kernel lock. The "p_opptr" pointer might change
* if the parent goes away (or due to ptrace). But any race
* isn't actually going to matter, as if the parent happens
* to change we can happily return either of the pids.
*/
(&regs)->r20 = tsk->real_parent->tgid;
return tsk->tgid;
}
asmlinkage unsigned long
osf_mmap(unsigned long addr, unsigned long len, unsigned long prot,
unsigned long flags, unsigned long fd, unsigned long off)
unsigned long flags, unsigned long fd, unsigned long off)
{
struct file *file = NULL;
unsigned long ret = -EBADF;
......@@ -502,19 +442,6 @@ sys_getdtablesize(void)
return NR_OPEN;
}
asmlinkage int
sys_pipe(int a0, int a1, int a2, int a3, int a4, int a5, struct pt_regs regs)
{
int fd[2], error;
error = do_pipe(fd);
if (!error) {
regs.r20 = fd[1];
error = fd[0];
}
return error;
}
/*
* For compatibility with OSF/1 only. Use utsname(2) instead.
*/
......@@ -723,8 +650,8 @@ osf_sigstack(struct sigstack *uss, struct sigstack *uoss)
*/
asmlinkage unsigned long
alpha_create_module(char *module_name, unsigned long size,
int a3, int a4, int a5, int a6, struct pt_regs regs)
do_alpha_create_module(char *module_name, unsigned long size,
struct pt_regs *regs)
{
long retval;
......@@ -735,7 +662,7 @@ alpha_create_module(char *module_name, unsigned long size,
the error number is a small negative number, while the address
is always negative but much larger. */
if (retval + 1000 < 0)
regs.r0 = 0;
regs->r0 = 0;
unlock_kernel();
return retval;
......
......@@ -42,18 +42,6 @@
#include "proto.h"
#include "pci_impl.h"
/*
* No need to acquire the kernel lock, we're entirely local..
*/
asmlinkage int
sys_sethae(unsigned long hae, unsigned long a1, unsigned long a2,
unsigned long a3, unsigned long a4, unsigned long a5,
struct pt_regs regs)
{
(&regs)->hae = hae;
return 0;
}
void default_idle(void)
{
barrier();
......@@ -227,6 +215,9 @@ flush_thread(void)
with respect to the FPU. This is all exceptions disabled. */
current_thread_info()->ieee_state = 0;
wrfpcr(FPCR_DYN_NORMAL | ieee_swcr_to_fpcr(0));
/* Clean slate for TLS. */
current_thread_info()->pcb.unique = 0;
}
void
......@@ -244,16 +235,15 @@ release_thread(struct task_struct *dead_task)
* with parameters (SIGCHLD, 0).
*/
int
alpha_clone(unsigned long clone_flags, unsigned long usp,
int *user_tid, struct switch_stack * swstack)
alpha_clone(unsigned long clone_flags, unsigned long usp, int *user_tid,
struct pt_regs *regs)
{
struct task_struct *p;
struct pt_regs *u_regs = (struct pt_regs *) (swstack+1);
if (!usp)
usp = rdusp();
p = do_fork(clone_flags & ~CLONE_IDLETASK, usp, u_regs, 0, user_tid);
p = do_fork(clone_flags & ~CLONE_IDLETASK, usp, regs, 0, user_tid);
return IS_ERR(p) ? PTR_ERR(p) : p->pid;
}
......@@ -282,7 +272,6 @@ copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
unsigned long unused,
struct task_struct * p, struct pt_regs * regs)
{
extern void ret_from_sys_call(void);
extern void ret_from_fork(void);
struct thread_info *childti = p->thread_info;
......@@ -304,11 +293,7 @@ copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
stack = ((struct switch_stack *) regs) - 1;
childstack = ((struct switch_stack *) childregs) - 1;
*childstack = *stack;
#ifdef CONFIG_SMP
childstack->r26 = (unsigned long) ret_from_fork;
#else
childstack->r26 = (unsigned long) ret_from_sys_call;
#endif
childti->pcb.usp = usp;
childti->pcb.ksp = (unsigned long) childstack;
childti->pcb.flags = 1; /* set FEN, clear everything else */
......
......@@ -249,8 +249,8 @@ void ptrace_disable(struct task_struct *child)
}
asmlinkage long
sys_ptrace(long request, long pid, long addr, long data,
int a4, int a5, struct pt_regs regs)
do_sys_ptrace(long request, long pid, long addr, long data,
struct pt_regs *regs)
{
struct task_struct *child;
long ret;
......@@ -307,14 +307,14 @@ sys_ptrace(long request, long pid, long addr, long data,
if (copied != sizeof(tmp))
goto out;
regs.r0 = 0; /* special return: no errors */
regs->r0 = 0; /* special return: no errors */
ret = tmp;
goto out;
}
/* Read register number ADDR. */
case PTRACE_PEEKUSR:
regs.r0 = 0; /* special return: no errors */
regs->r0 = 0; /* special return: no errors */
ret = get_reg(child, addr);
DBG(DBG_MEM, ("peek $%ld->%#lx\n", addr, ret));
goto out;
......
......@@ -210,8 +210,7 @@ long alpha_fp_emul (unsigned long pc);
asmlinkage void
do_entArith(unsigned long summary, unsigned long write_mask,
unsigned long a2, unsigned long a3, unsigned long a4,
unsigned long a5, struct pt_regs regs)
struct pt_regs *regs)
{
long si_code = FPE_FLTINV;
siginfo_t info;
......@@ -221,23 +220,21 @@ do_entArith(unsigned long summary, unsigned long write_mask,
emulate the instruction. If the processor supports
precise exceptions, we don't have to search. */
if (!amask(AMASK_PRECISE_TRAP))
si_code = alpha_fp_emul(regs.pc - 4);
si_code = alpha_fp_emul(regs->pc - 4);
else
si_code = alpha_fp_emul_imprecise(&regs, write_mask);
si_code = alpha_fp_emul_imprecise(regs, write_mask);
}
die_if_kernel("Arithmetic fault", &regs, 0, 0);
die_if_kernel("Arithmetic fault", regs, 0, 0);
info.si_signo = SIGFPE;
info.si_errno = 0;
info.si_code = si_code;
info.si_addr = (void *) regs.pc;
info.si_addr = (void *) regs->pc;
send_sig_info(SIGFPE, &info, current);
}
asmlinkage void
do_entIF(unsigned long type, unsigned long a1,
unsigned long a2, unsigned long a3, unsigned long a4,
unsigned long a5, struct pt_regs regs)
do_entIF(unsigned long type, struct pt_regs *regs)
{
siginfo_t info;
int signo, code;
......@@ -245,13 +242,13 @@ do_entIF(unsigned long type, unsigned long a1,
if (!opDEC_testing || type != 4) {
if (type == 1) {
const unsigned int *data
= (const unsigned int *) regs.pc;
= (const unsigned int *) regs->pc;
printk("Kernel bug at %s:%d\n",
(const char *)(data[1] | (long)data[2] << 32),
data[0]);
}
die_if_kernel((type == 1 ? "Kernel Bug" : "Instruction fault"),
&regs, type, 0);
regs, type, 0);
}
switch (type) {
......@@ -260,10 +257,10 @@ do_entIF(unsigned long type, unsigned long a1,
info.si_errno = 0;
info.si_code = TRAP_BRKPT;
info.si_trapno = 0;
info.si_addr = (void *) regs.pc;
info.si_addr = (void *) regs->pc;
if (ptrace_cancel_bpt(current)) {
regs.pc -= 4; /* make pc point to former bpt */
regs->pc -= 4; /* make pc point to former bpt */
}
send_sig_info(SIGTRAP, &info, current);
......@@ -273,15 +270,15 @@ do_entIF(unsigned long type, unsigned long a1,
info.si_signo = SIGTRAP;
info.si_errno = 0;
info.si_code = __SI_FAULT;
info.si_addr = (void *) regs.pc;
info.si_addr = (void *) regs->pc;
info.si_trapno = 0;
send_sig_info(SIGTRAP, &info, current);
return;
case 2: /* gentrap */
info.si_addr = (void *) regs.pc;
info.si_trapno = regs.r16;
switch ((long) regs.r16) {
info.si_addr = (void *) regs->pc;
info.si_trapno = regs->r16;
switch ((long) regs->r16) {
case GEN_INTOVF:
signo = SIGFPE;
code = FPE_INTOVF;
......@@ -341,7 +338,7 @@ do_entIF(unsigned long type, unsigned long a1,
info.si_signo = signo;
info.si_errno = 0;
info.si_code = code;
info.si_addr = (void *) regs.pc;
info.si_addr = (void *) regs->pc;
send_sig_info(signo, &info, current);
return;
......@@ -358,26 +355,26 @@ do_entIF(unsigned long type, unsigned long a1,
we get the correct PC. If not, we set a flag
to correct it every time through. */
if (opDEC_testing) {
if (regs.pc == opDEC_test_pc) {
if (regs->pc == opDEC_test_pc) {
opDEC_fix = 4;
regs.pc += 4;
regs->pc += 4;
printk("opDEC fixup enabled.\n");
}
return;
}
regs.pc += opDEC_fix;
regs->pc += opDEC_fix;
/* EV4 does not implement anything except normal
rounding. Everything else will come here as
an illegal instruction. Emulate them. */
si_code = alpha_fp_emul(regs.pc - 4);
si_code = alpha_fp_emul(regs->pc - 4);
if (si_code == 0)
return;
if (si_code > 0) {
info.si_signo = SIGFPE;
info.si_errno = 0;
info.si_code = si_code;
info.si_addr = (void *) regs.pc;
info.si_addr = (void *) regs->pc;
send_sig_info(SIGFPE, &info, current);
return;
}
......@@ -406,7 +403,7 @@ do_entIF(unsigned long type, unsigned long a1,
info.si_signo = SIGILL;
info.si_errno = 0;
info.si_code = ILL_ILLOPC;
info.si_addr = regs.pc;
info.si_addr = (void *) regs->pc;
send_sig_info(SIGILL, &info, current);
}
......@@ -418,18 +415,16 @@ do_entIF(unsigned long type, unsigned long a1,
and if we don't put something on the entry point we'll oops. */
asmlinkage void
do_entDbg(unsigned long type, unsigned long a1,
unsigned long a2, unsigned long a3, unsigned long a4,
unsigned long a5, struct pt_regs regs)
do_entDbg(struct pt_regs *regs)
{
siginfo_t info;
die_if_kernel("Instruction fault", &regs, type, 0);
die_if_kernel("Instruction fault", regs, 0, 0);
info.si_signo = SIGILL;
info.si_errno = 0;
info.si_code = ILL_ILLOPC;
info.si_addr = regs.pc;
info.si_addr = (void *) regs->pc;
force_sig_info(SIGILL, &info, current);
}
......@@ -1083,22 +1078,6 @@ do_entUnaUser(void * va, unsigned long opcode,
return;
}
/*
* Unimplemented system calls.
*/
asmlinkage long
alpha_ni_syscall(unsigned long a0, unsigned long a1, unsigned long a2,
unsigned long a3, unsigned long a4, unsigned long a5,
struct pt_regs regs)
{
/* We only get here for OSF system calls, minus #112;
the rest go to sys_ni_syscall. */
#if 0
printk("<sc %ld(%lx,%lx,%lx)>", regs.r0, a0, a1, a2);
#endif
return -ENOSYS;
}
void
trap_init(void)
{
......@@ -1114,9 +1093,7 @@ trap_init(void)
wrent(entDbg, 6);
/* Hack for Multia (UDB) and JENSEN: some of their SRMs have
* a bug in the handling of the opDEC fault. Fix it up if so.
*/
if (implver() == IMPLVER_EV4) {
a bug in the handling of the opDEC fault. Fix it up if so. */
if (implver() == IMPLVER_EV4)
opDEC_check();
}
}
......@@ -223,12 +223,12 @@ alpha_fp_emul (unsigned long pc)
FP_CONV(S,D,1,1,SR,DB);
goto pack_s;
} else {
/* CVTST need do nothing else but copy the
bits and repack. */
vb = alpha_read_fp_reg_s(fb);
FP_UNPACK_SP(SB, &vb);
DR_c = DB_c;
DR_s = DB_s;
DR_e = DB_e;
DR_f = DB_f;
DR_f = SB_f << (52 - 23);
goto pack_d;
}
......
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